Patent US4554243A successfully refreshed from Google Patents.
US4554243A
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Silver halide material with photographic agent blocked by nucleophilic attack removable group
Assignee: Fujifilm Holdings Corp
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Filing: 1984-05-25
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Granted: 1985-11-19
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Expires: 2004-05-25
Abstract
Abstract A silver halide photographic light-sensitive material is described which comprises a support having thereon a light-sensitive silver halide emulsion layer, wherein the photographic light-sensitive material therein contains a blocked photographic agent capable of releasing a photographically useful agent and the blocked photographic agent has a carbonyl group or thiocarbonyl group to which a hydrogen atom or a carbon atom is directly bonded and is substituted with a photographically useful group which is capable of being released upon an intramolecular nucleophilic attack by the oxygen atom in the carbonyl group or the sulfur atom in the thiocarbonyl group. The precursor of photographic agent is completely stable during storage prior to use of the photographic light-sensitive material, and releases a photographic agent at a desired time upon the processing of the photographic light-sensitive material. The precursor also exhibits its function to a substantial degree in a relatively low pH range. A method of forming an image using the silver halide photographic light-sensitive material is also described.
Inventors
- 👤 Mitsunori Ono
- 👤 Isamu Itoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:39
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; C; C07; C07D; C07D231/00; C07D231/02; C07D231/06; C07D231/08; C07D231/54; C07D231/56; C07D249/00; C07D249/16; C07D249/18; C07D257/00; C07D257/02; C07D257/04; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158; Y10S430/16; Y10S430/161
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
208 words
A silver halide photographic light-sensitive material which comprises a support having thereon a light-sensitive silver halide emulsion layer, wherein the photographic light-sensitive material therein contains a blocked photographic agent capable of releasing a photographically useful agent, wherein the blocked photographic agent is a compound represented by formula (I): ##STR16## wherein X 1 represents an oxygen atom or a sulfur atom; Z represents an electrophilic group; A represents a photographically useful agent moiety; TG represents a timing group; L represents a linking group which is bonded to ##STR17## through a carbon atom thereof and L is capable of forming a 5-membered to 7-membered ring upon a nucleophilic attack of the oxygen atom or sulfur atom represented by X 1 on the electrophilic group represented by Z, said linking group being selected from the group consisting of an alkylene group, an alkyloxyalkylene group, an alkylaminoalkylene group, an alkenylene group, an arylene group, a cyclocyclene group, a heterocyclene group, an alkyleneamino group, an alkenyleneamino group, an aryleneamino group, a cyclocycleneamino group, a heterocycleneamino group and combinations thereof; R represents a hydrogen atom or a substituent which is bonded through a carbon atom thereof; m and n each is an integer of from 1 to 3; and p is 0 or 1.
Claim 2
Dependent Claim
208 words
A silver halide photographic light-sensitive material which comprises a support having thereon a light-sensitive silver halide emulsion layer, wherein the photographic light-sensitive material therein contains a blocked photographic agent capable of releasing a photographically useful agent, wherein the blocked photographic agent is a compound represented by formula (I): ##STR16## wherein X 1 represents an oxygen atom or a sulfur atom; Z represents an electrophilic group; A represents a photographically useful agent moiety; TG represents a timing group; L represents a linking group which is bonded to ##STR17## through a carbon atom thereof and L is capable of forming a 5-membered to 7-membered ring upon a nucleophilic attack of the oxygen atom or sulfur atom represented by X 1 on the electrophilic group represented by Z, said linking group being selected from the group consisting of an alkylene group, an alkyloxyalkylene group, an alkylaminoalkylene group, an alkenylene group, an arylene group, a cyclocyclene group, a heterocyclene group, an alkyleneamino group, an alkenyleneamino group, an aryleneamino group, a cyclocycleneamino group, a heterocycleneamino group and combinations thereof; R represents a hydrogen atom or a substituent which is bonded through a carbon atom thereof; m and n each is an integer of from 1 to 3; and p is 0 or 1.
Claim 3
Dependent Claim
19 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographically useful group contains a timing group.
Claim 4
Dependent Claim
27 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographic material is a silver halide color photographic light-sensitive material containing a color forming coupler.
Claim 5
Dependent Claim
19 words
A silver halide photographic light-sensitive material as in claim 1, wherein m and n each is 1 or 2.
Claim 6
Dependent Claim
60 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographically useful agent in the moiety represented by A is an antifoggant, a development restrainer, a developing agent, an auxiliary developing agent, a development accelerator, a fogging agent, a dye or a redox compound capable of releasing a photographically useful agent as a function of silver halide development.
Claim 7
Dependent Claim
25 words
A silver halide photographic light-sensitive material as in claim 5, wherein the photographically useful agent is selected from mercaptotetrazoles, mercaptotriazoles, mercaptobenzimidazoles, benzotriazoles, benzimidazoles and indazoles.
Claim 8
Dependent Claim
22 words
A silver halide photographic light-sensitive material as in claim 5, wherein the photographically useful agent is selected from p-phenylenediamines, hydroquinones and aminophenols.
Claim 9
Dependent Claim
19 words
A silver halide photographic light-sensitive material as in claim 5, wherein the photographically useful agent is selected from pyrazolidones.
Claim 10
Dependent Claim
25 words
A silver halide photographic light-sensitive material as in claim 5, wherein the photographically useful agent is selected from hydrazines, hydrazides, acetylenic compound and tetrazolium salts.
Claim 11
Dependent Claim
20 words
A silver halide photographic light-sensitive material as in claim 5, wherein the photographically useful agent is selected from azo compounds.
Claim 12
Dependent Claim
45 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographically useful agent in the moiety represented by A is a compound having a redox function so as to enable the release of photographically useful agent as a function of silver halide development.
Claim 13
Dependent Claim
35 words
A silver halide photographic light-sensitive material as in claim 11, wherein the photographically useful agent in the moiety represented by A is a coloring material for color diffusion transfer or a development inhibitor releasing hydroquinone.
Claim 14
Dependent Claim
14 words
A silver halide photographic light-sensitive material as in claim 1, wherein p is 0.
Claim 15
Dependent Claim
14 words
A silver halide photographic light-sensitive material as in claim 1, wherein p is 1.
Claim 16
Dependent Claim
74 words
A silver halide photographic light-sensitive material as in claim 14, wherein the timing group TG is a connecting group selected from a group which releases the photographically useful agent by an intramolecular ringclosing reaction, a group which releases the photographically useful agent through intramolecular electron transfer, a group which releases the photographically useful agent with the evolution of carbon dioxide, or a group which releases the photographically useful agent with the evolution of formaldehyde.
Claim 17
Dependent Claim
31 words
A silver halide photographic light-sensitive material as in claim 15, wherein the timing group TG is a group represented by the formula ##STR18## wherein A represents a photographically useful agent moiety.
Claim 18
Dependent Claim
37 words
A silver halide photographic light-sensitive material as in claim 1, wherein the electrophilic group represented by Z is a carbonyl group, a thiocarbonyl group, a sulfonyl group, a sulfinyl group, an allyl group or a benzyl group.
Claim 19
Dependent Claim
29 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographic material is a color diffusion transfer silver halide photographic light-sensitive material containing a dye-image providing material.
Claim 20
Dependent Claim
34 words
A silver halide photographic light-sensitive material as in claim 1, wherein the photographic material is a black and white silver halide photographic light-sensitive material which forms a silver image upon black and white development.
Claim 21
Dependent Claim
40 words
A silver halide photographic light-sensitive material as in claim 1, wherein the substituent which is bonded through a carbon atom represented by R is an alkyl group, an alkenyl group, an aryl group, a cycloalkyl group, or a heterocyclic group.
Claim 22
Dependent Claim
153 words
A silver halide photographic light-sensitive material as in claim 1, wherein the blocked photographic agent is a compound represented by formula (II): ##STR19## wherein A, TG, p, and Z each has the same meaning as defined therefor in formula (I); R 1 has the same meaning as defined for R in formula (I), R 2 and R 3 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a phenyl group, a hydroxy group, an alkoxy group, or an acyl group, each of these groups may have a substituent or R 2 and R 3 together form a double bond or a ring; R 4 represents an alkyl group, an alkenyl group, or a phenyl group; k is an integer from 1 to 4; l is 0 or 1; and the sum of k and l is from 2 to 4.
Claim 23
Dependent Claim
39 words
A silver halide photographic light-sensitive material as in claim 21, wherein k is 2, 3, or 4 and the carbon atom substituted with R 2 and R 3 forms a cycloalkyl ring, an aromatic ring or a heterocyclic ring.
Claim 24
Dependent Claim
58 words
A silver halide photographic light-sensitive material as in claim 21, wherein R 1 represents a hydrogen atom, an alkyl group having from 1 to 17 carbon atoms, an alkenyl group having from 3 to 17 carbon atoms, a phenyl group having from 6 to 21 carbon atoms, or a heterocyclic group having from 4 to 21 carbon atoms.
Claim 25
Dependent Claim
28 words
A silver halide photographic light-sensitive material as in claim 21, wherein R 2 and R 3 each represents a hydrogen atom, a halogen atom, or an alkyl group.
Claim 26
Dependent Claim
31 words
A silver halide photographic light-sensitive material as in claim 22, wherein the ring which is formed with the carbon atom substituted with R 2 and R 3 is a benzene ring.
Claim 27
Dependent Claim
26 words
A silver halide photographic light-sensitive material as in claim 21, wherein k is 2 or 3 and each of ##STR20## or ##STR21## has the same structure.
Claim 28
Dependent Claim
26 words
A silver halide photographic light-sensitive material as in claim 21, wherein k is 2 or 3 and each of ##STR22## or ##STR23## has a different structure.
Claim 29
Dependent Claim
35 words
A silver halide photographic light-sensitive material as in claim 21, wherein R 4 represents an alkyl group having from 1 to 18 carbon atoms or a phenyl group having from 6 to 21 carbon atoms.
Claim 30
Dependent Claim
20 words
A silver halide photographic light-sensitive material as in claim 21, wherein Z represents a carbonyl group or a sulfonyl group.
Claim 31
Dependent Claim
17 words
A silver halide photographic light-sensitive material as in claim 21, wherein k is 1, 2 or 3.
Claim 32
Dependent Claim
35 words
A silver halide photographic light-sensitive material as in claim 30, wherein k is 1 and l is 1, k is 2 and l is 0 or 1, or k is 3 and l is 0.
Claim 33
Dependent Claim
32 words
A silver halide photographic light-sensitive material as in claim 21, wherein the photographically useful agent in the moiety represented by A is an antifoggant, a developing agent, or an auxiliary developing agent.
Claim 34
Dependent Claim
23 words
A silver halide photographic light-sensitive material as in claim 1, wherein the blocked photographic agent is present in a silver halide emulsion layer.
Claim 35
Dependent Claim
52 words
A silver halide photographic light-sensitive material as in claim 1, wherein the blocked photographic agent is an antifoggant of mercapto group-containing type and the blocked photographic agent is contained in the photographic material in an amount of 10 -9 to 10 -2 mole per mole of silver in the silver halide emulsion.
Claim 36
Dependent Claim
48 words
A silver halide photographic light-sensitive material as in claim 1, wherein the blocked photographic agent is an antifoggant of azole type and the blocked photographic agent is contained in the photographic material in an amount of 10 -8 mole per mole of silver in the silver halide emulsion.
Claim 37
Dependent Claim
59 words
A silver halide photographic light-sensitive material as in claim 1, wherein the blocked photographic agent is a developing agent of p-phenylenediamine type or an auxiliary developing agent of pyrazolidone type and the blocked photographic agent is contained in the photographic material in an amount of 10 -4 to 10 mole per mole of silver in the silver halide emulsion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |